Thermally-controlled float



S. LIPPERT. 'THE RMALLY CONTROLLED FLOAT. APPLICATION FILED mus 29. 1916.

1,345,938. Patented July 6, 1920.

"rur orrIcE.

SAMUEL LIPPERT, GE CLEVELAND, SHIO.

THEEMALLY-CONTROLLED FLOAT.

Application filed June 29, 1916.

1 '0 (all whom it may concern:

lie it known, that l, fhiiu'onn Lrrrnnir, a citizen oi the United States, and resident of lerelnnd in the county of Uuynhogn t-itnte oi Ohio, have invented certain new and uselul. L'linmovements in Thernnilly-Uontrolled Fleets, of which I hereby declare the tollowing to be a :tull clear, and exact d iscription such as will enuble others skilled in the art to which it uppertiiins to mulce and use the some.

The objects ol the invention are to proride on improved u utonieticully noting vulve luiving u. thermally operuted release outlet for air therein lor drui-ning the weter ol condensation and the oil :lirom the pipes oi n strum su iply system, 21nd udupted For use in u steum heating or power plant oi any so The valve is designed to operate euu: .ly well hi, :my elevation above or below the wider level oil the boiler, and will periodically rclens-ie the liquid from. the

system without permitting the scope of the ternn tllerei'roi'rn il'flll thus will provide dry steann. and n'event \vnter hummer and mono the action oi the system quietllhe invention einb-zidies ii gravity opersting and sell sealing steem trap which may be .1 mod on the vacuum line oil a sterile beet 15.1 system. and hes e chamber in which the wntoroud oil collect and in which the liquid level can never rise beyi'elli :i ore!letermined point. The devive used to releuse the Wfittll and can also oil [rem steam pipes and (-hinnbers which ere not on vicuuin lines.

The invr ion include. at flout operated valve located. in u fluid collecting chamber SPuifQ'll lil'OPl the wells oi the chinnber end rear. ly sa ted by gruivity in such n numner 21s to ereludi-i the passage o'l liquid or vupor, but which under the action (it the accumulating liquid will rise and. permit some oil the liquid to pas, us soon as the liquid level has risen to the predetermined point or limit. The float will then. immediately full and prevent the passage of steam before all the liquid has been discharged from the chamber and thereby will always produce :1.- timely seating of the valve to prevent escape of steam.

An important feature of the invention includes an air passage in the float permitting the air in the chamber to escape and the valve to rise, and on improved Valve and :1 thermal element in said air passage Specification of Letters Patent.

Patented July (-3, 1920.

Serial No. 106,574.

controlling said valve to prevent steam from escaping through the some.

The invention :l urtlier comprises the combination end arr genient of ports and construction oi? detail. herein-Lifter described, shown in the accompanying drawings and specifically pointed out in the claims.

In the drawings i igure 1 is a vertical section of the device.

lfig. 2 is horizontal section thereof.

liig. 3 is it verticnl section. of the thermolly controlled floutvulve.

l u side elevation of the flout con tuiniug chamber cz'innected to :1 steam distributing; pipe which may be connected to e boiler.

in these views A. is :1 cylindrical chamber or ensinp; closed at its top and bottom end having vertical sides. I; an inlet opening at one side positioned above the lower end end having on upwardly rising or goose n 3 inlet passage 7) the lower edge 7)" cl which forms e water seal between the inlet end the casing. not the bottom of the chzunher is the outlet opening {.5 provided with e vnlve sent f. s'a flout l) in this chamber is provideiil with u vzilv ill at its lower end which closes the outlet passage when it rests on the seat C.

A cover F permits oil access to the float ind tor cleaning or repairs it necessary.

m flout is spaced from the vertical walls of toe chamber by menus of narrow hinges r l i o l (l. serving as guides between which the water n'ud oil readily puss, but which prevent the flout "from sticking to the wells.

lirtending vertically and ii-ei'itrzilly through the l'loit is it copper tube H forming an :iir passage through which the air con descend to permit the flout to rise in the chzin'lber. since without this passage the compressed air in the elnunbor would prevent the loot from rising.

A plug H in the lower end of this tube supports it steel valve stem l. stunding in the tube and huvinp; a. valve 1 at its upper end which closes against a. sent :it the top of the tube. Smell holes K above the plug at pulls down the attached valve stem 1 until the valve 1 is closed, thus preventing the passage of steam theretlirough.

The device can be attached to any steam pipe? in any convenient position as shown in Fig. 4:. c

In operation, the goose neck inlet 13 forms a water sealed passage to the float chamber, and as the water rises it flows over the wall 6 into the-casing, the air in the casing escaping through the tube H and its valve 1'. When the point of flotation of the float is reached the valve E opens and the water escapes through the outlet G. This action siphons sullicient water from the 'inlet B into the casing and it immediately seals the valve E against steam escape. Steam then entering the casing expands the tube H and closes the valve 1, and as the steam condenses the water forms a new seal in the inlet passage and flows over the wall 0 into the casing until the operation is repeated, the tube H meanwhile contracting and open ingtheair valve l to prevent compression of air in the float chamber.

1 claim:

1. A device for the purpose set forth, comprising a float valve, an expansion tube extending therethrough and secured at the upper end to said float, the lower end of saidtube being slidable in the wall of said float, and an air valve in said tube control- 2. In a combined steamtrap and liquid discharging device, a closed chamber provided with an outlet openlng and valve seat at its lower end and also provided with aninlet opening above the outlet opening, a float valve within said chamber cooperating with said-seat, said float valve having a vertical thermally operated air outlet tube carried thereby and extending therethrough,

and a valve in said tube controlling the outlet therefrom. V

3. In a combined steam trap and liquid discharging device, a chamber having a water trap, a float therein, a thermal tube secured at one end in the wall or" said float, and slidingly movable inthe opposite wall forming an air escape passage, and a valve having a stem secured to the movable end of said tube and adapted to move said valve to close said passage when said tube is eX- panded. r

In testimony whereof I hereunto set my hand this Sf day of June, 1916.

SAMUEL LIPPERT. In presence of- I i J. P. VANA, FRANK H. EWING. 

